The town emblem was adopted on Nov 3rd 1957 but there is no flag law.
The blue flag has a white, a yellow and a grey three color town emblem in the center.
The number 8 symbolizes Hachi (=8) of Hachirogata and the merger of former two towns.
The sail on both side stands for a surge of the town.
It represents rapidly advancing town and a cooperation, a peace and a prosperity.
Hachirogata Town general affairs section confirms they donít use a dark blue flag nor
a white flag.
They use only a blue flag at the town hall.Nozomi Kariyasu, 26 September 2014